Comprehensive Unit Root and Stationarity Tests R package unitrootests version 1.1.0 A unified framework for unit root and stationarity testing including quantile ADF tests (Koenker and Xiao, 2004) <doi:10.1198/016214504000001114>, GARCH-based unit root tests with endogenous structural breaks (Narayan and Liu, 2015) <doi:10.1016/j.eneco.2014.11.021>, and comprehensive Dickey-Fuller, Phillips-Perron, KPSS, ERS/DF-GLS, Zivot-Andrews, and Kobayashi-McAleer tests with an Elder-Kennedy decision strategy (Elder and Kennedy, 2001) <doi:10.1080/00220480109595179>. Software Depends: R (>= 3.5.0) Imports: stats, quantreg, tseries, urca, strucchange Suggests: testthat (>= 3.0.0), zoo Muhammad Abdullah Alkhalaf <muhammedalkhalaf@gmail.com> Comprehensive R Archive Network (CRAN) Muhammad Abdullah Alkhalaf [aut, cre, cph] (ORCID: <https://orcid.org/0009-0002-2677-9246>) GPL-3 2026-04-03 application/tgz https://CRAN.R-project.org/package=unitrootests doi:10.32614/CRAN.package.unitrootests